Any material used to cover the top layer of soil to protect, insulate, or decorate it, or to discourage weeds or retain moisture.
A material used as mulch, as a decorative redwood bark mulch.
Verb
To apply mulch.
To turn into mulch.
Origin
Probably from Middle English melsche, molsh, from Old English melsc, milisc, probably from Proto-Germanic *mili ("honey"). Compare Icelandic milska ("a honeyed beverage").
Modern English dictionary
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